A built-in redundancy-analysis scheme for self-repairable RAMs with two-level redundancy

Yu Jen Huang, Da Ming Chang, Jin Fu Li

研究成果: 書貢獻/報告類型會議論文篇章同行評審

9 引文 斯高帕斯(Scopus)

摘要

With the increasing demand of memories in system-on-chip (SOC) designs, developing efficient yield-improvement techniques for memories becomes an important issue. Built-in self-repair (BISR) technique has become a popular method for repairing defective embedded memories. To allocate redundancy efficiently, built-in redundancy-analysis (BIRA) function is usually needed for designing a BISR scheme. This paper presents an efficient BIRA scheme for RAMs with two-level redundancy (i.e., spare rows, spare columns, and spare words). Experimental results show that the repair rate of the proposed BIRA scheme approximates to that of the exhaustive search with the same redundancy organization. Furthermore, the repair rate of the proposed BIRA scheme with two-level redundancy is higher than that of the exhaustive search scheme with one-level redundancy (i.e., spare rows and spare columns). The area cost of the proposed BIRA scheme is low. For example, the hardware overhead of the proposed BIRA scheme for an 8K×64-bit RAM with three spare rows, three spare columns, and two spare words is only about 2%.

原文???core.languages.en_GB???
主出版物標題Proceedings - 21st IEEE International Symposium on Defect and Fault-Tolerance in VLSI Systems, DFT'06
頁面362-370
頁數9
DOIs
出版狀態已出版 - 2006
事件2006 21st IEEE International Symposium on Defect and Fault Tolerance in VLSI Systems - Arlington, VA, United States
持續時間: 4 10月 20066 10月 2006

出版系列

名字Proceedings - IEEE International Symposium on Defect and Fault Tolerance in VLSI Systems
ISSN(列印)1550-5774

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???event.eventtypes.event.conference???2006 21st IEEE International Symposium on Defect and Fault Tolerance in VLSI Systems
國家/地區United States
城市Arlington, VA
期間4/10/066/10/06

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